Synergistic herbicidal mixtures

ABSTRACT

A synergistically active herbicidal composition which comprises, as active components, a mixture of 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile [Component (A)] and a herbicide selected from the group consisting of bentazone, molinate, daimuron, thiobencarb, butachlor, pretilachlor, dimepiperate, fenoxaprop-ethyl, clomeprop, cinmethylin, bromobutide, quinclorac, mefenacet, pyrazosulfuron-ethyl, esprocarb, cinosulfuron, thenylchlor, cumyluron, MK 243, naproanilide, anilofos, benfuresate, bifenox, CH-900, MCPA, nitrofen, oxadiazon, pendimethalin, simetryn, sulcotrione (ICIA0051), trifluralin, piperophos, pyributicarb, ethoxysulfuron, bensulfuronmethyl, pyrazolate, pyrazoxyfen, benzofenap, cyclosulfamuron, cyhalofop-butyl, NBA-061, azimsulfuron, propanil or imazosulfuron [Component (B)] and which are suitable for controlling undesirable plants in rice cultivation.

This application is a 371 of PCT/EP96/04935, filed on Nov. 12, 1996.

The invention relates to novel mixtures of 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile and other herbicides, and to their use for controlling weeds in agricultural crops.

The herbicidal action of 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile has already been disclosed (DE OS 43 15 330). Furthermore, it is known that the use of mixtures of active substances can result in specific advantages, especially since the use of the individual active substances is unsatisfactory in most cases.

It has now been found that herbicidal compositions which comprise, as active components, a mixture of 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile [Component (A)] and another herbicide selected from the group consisting of bentazone, molinate, daimuron, thiobencarb, butachlor, pretilachlor, dimepiperate, fenoxaprop-ethyl, clomeprop, cinmethylin, bromobutide, quinclorac, mefenacet, pyrazosulfuron-ethyl, esprocarb, cinosulfuron, thenylchlor, cumyluron, MK 243, naproanilide, anilofos, benfuresate, bifenox, CH-900, MCPA, nitrofen, oxadiazon, pendimethalin, simetryn, sulcotrione (ICIA0051), trifluralin, piperophos, pyributicarb, ethoxysulfuron, bensulfuronmethyl, pyrazolate, pyrazoxyfen, benzofenap, cyclosulfamuron, cyhalofop-butyl, NBA-061, azimsulfuron, propanil or imazosulfuron [Component (B)] exhibit an especially high herbicidal activity without losing the selective properties relative to agricultural crops such as rice and which in some cases even decidedly improve crop compatibility.

With the exception of cumyluron and NBA-061, the active substances of Component (B) are known, for example, from The Pesticidal Manual, 10th Edition (1994), Brit. Crop Prot. Council, London, and The Royal Soc. of Chem., Cambridge. Cumyluron itself has been described, inter alia, in Agrochem. Jpn., 63, 18-19, 1993 (Konnai et al.) and NBA-061 in DE 504059, EP 612735 and EP 726259.

Surprisingly, the herbicidal activity of the active substance combinations according to the invention by far exceeds the activity of the individual components and also the total of the individual components. Thus, a synergistic effect is present.

For example, the active substance combinations according to the invention can be used for controlling the following plants:

dicotyledon weeds of the genera Lindernia, Rotala, Mimosa, Heteranthera, Sinapis, Galium, Stellaria, Matricaria, Galinsoga, Chenopodium, Brassica, Urtica, Senecio, Amaranthus, Portulaca, Xanthium, Convolvulus, Ipomea, Polygonum, Sesbania, Cirsium, Carduus, Sonchus, Solanum, Lamium, Veronica, Abutilon, Datura and Viola, and

monocotyledon weeds of the genera Alisma, Avena, Alopecurus, Echinochloa, Setaria, Scirpus, Panicum, Digitaria, Poa, Eleusine, Brachiaria, Lolium, Bromus, Cyperus, Agropyron, Sagittaria, Monochoria, Fimbristylis, Eleocharis, Ischaemum, Potamogeton, Eichhornia and Apera.

The mixtures according to the invention are employed post-emergence by direct application, for example by spraying them onto the plants, or else pre-emergence by direct application into the paddy water, or by spraying. Selective application is possible in a series of crop plantings, of which rice is preferred. The rate of application is between 0.001 and 5 kg/ha for the total of the components in the mixture, depending on the intended purpose.

The weight ratio of Component (A) to Component (B) in the mixture is between 1:0.1 and 1:100, preferably 1:0.5 and 1:50.

If desired, the compositions according to the invention can also be used in the form of a mixture with other active substances, for example other crop protection chemicals or pesticides, depending on the intended purpose.

Moreover, the intensity and speed of action can be enhanced for example by activity-promoting additives such as organic solvents, wetting agents and oils. Such additives may therefore allow the dosage rate of active substance to be reduced even further.

It is expedient to employ the compositions characterized in the form of preparations such as powders, materials for spreading, granules, solutions, emulsions or suspensions with an addition of liquid and/or solid carriers or diluents and, if appropriate, tackifiers, wetting agents, emulsifiers and/or dispersants.

Examples of suitable liquid carriers are aliphatic and aromatic hydrocarbons such as toluene, xylene, or else cyclohexanone, isophorone, dimethyl sulfoxide, dimethylformamide, and furthermore mineral oil fractions and vegetable oils.

Suitable solid carriers are minerals, for example bentonite, silica gel, talc, kaolin, attapulgite, limestone and products of vegetable origin, for example meals.

Examples of surfactants to be mentioned are calcium ligninsulfonate, polyethylene alkylphenyl ethers, naphthalenesulfonic acid and its salts, phenolsulfonic acids and their salts, formaldehyde condensates, fatty alcohol sulfonates and substituted benzenesulfonic acids and their salts.

The amount of the active substances in the various preparations can be varied within wide limits. For example, the compositions comprise approximately 10 to 90 percent by weight of active substances, approximately 90 to 10 percent by weight of liquid or solid carriers and, if appropriate, up to 20 percent by weight of surfactants.

The compositions can be applied in the customary manner, for example using water as carrier at rates of approximately 100 to 1000 liters of spray mixture per ha. Application of the compositions by the so-called low-volume and ultra-low-volume methods (ULV) is equally possible, as is their application in the form of granules and microgranules.

These preparations can be prepared in a manner known per se, for example by grinding or mixing processes. If desired, preparations of the individual components can also be mixed only just before they are used, as is the case, for example, when preparing a tank mix under realistic conditions.

The examples which follow are intended to illustrate the use of the compositions according to the invention.

The synergistic effect was calculated as described by S. R. Colby in "Calculating Synergistic and Antagonistic Responses of Herbicide Combinations" Weeds 15/1 (1967), pages 20 to 22.

The following formula was used for this purpose: ##EQU1## where X=herbicidal activity (%) when applying substance A at p g/ha

Y=herbicidal activity (%) when applying substance B at q g/ha and

E=herbicidal activity (%) to be expected when the application of substances A+B at p+q g/ha amount to an additive effect.

If the observed value exceeded the value E calculated using Colby's formula, the combination had a synergistic effect.

DESCRIPTION OF METHODS

Square dishes with a side length of 13.5 cm and a height of 8.0 cm are filled with 900 ml of soil mixture. The following species are sown or planted in the dishes following a set routine:

    ______________________________________                                                           Planting                                                     Species           rate       BAYER code                                        ______________________________________                                         Orysa sativa      4 seeds    ORYSW                                             Oryza sativa (depth 3 cm)                                                                        3 plants   ORYSA                                             Oryza sativa (depth 1 cm)                                                                        2 plants   ORYSP                                             Echinocloa crus-galli                                                                            approx. 20 ECHCG                                                               seeds                                                        Echinocloa crus-galli (E)                                                                        approx. 20 ECHCG                                                               seeds      (E. = Europe)                                     Echinocloa crus galli                                                                            approx. 20 ECHCG                                             (US)              seeds      (US = U.S.A.)                                     Cyperus serotinus 3 tubers   CYPSE                                             Scirpus juncoides approx. 30 SCPJU                                                               seeds                                                        Sagittaria pygmaea                                                                               3 tubers   SAGPY                                             Monochoria vaginalis                                                                             4 nodes    MOOVA                                             Cyperus difformis approx. 80 CYPDI                                                               seeds                                                        Paspalum distichum                                                                               4 nodes    PASDS                                             ______________________________________                                    

During the entire experimental period, the dishes remain in the greenhouse at a temperature between 25° C. during the day and 20° C. during the night. The atmospheric humidity is between 60 and 80%. During a 14-hour photo period, the plants receive at least 10,000 lux.

Depending on the efficiency, the test substances are tested at three different concentrations.

For the pre-emergence treatment, the test substances are applied to the sown plants by spraying in such a way that those dosages per hectare which are given in the tables result (converted).

For post-emergence treatment, ECHCG, SCPJU, MOOVA and SAGPY are sown into the first dish, and CYPDI and CYPSE and the pregerminated sown rice seeds are placed into the second dish. After one day, the dishes are covered with transparent film to avoid desiccation. Three days prior to application, batches of three rice plants in the 2.5-leaf stage are planted in the second dish at a depth of 3 cm and 1 cm, respectively. Once Echinochloa crus-galli is in the 1.0-leaf stage, the active substance, or mixture, is applied. The water level is raised to 1-2 cm. The test substances are applied by pipetting onto a water surface area of approximately 170 cm² so that the dosages per hectare which are given in the tables is result (converted).

EXAMPLE 1 Mixtures of (A) with Bifenox (B1)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B1) at rates of 50/100/200 g/ha.

Synergistic effects were observed with ECHCG (E), CYPSE, MOOVA and SCPJU, as can be seen from Table 1 below.

                                      TABLE 1                                      __________________________________________________________________________     Component/                                                                     species   ECHCG (E) CYPSE     MOOVA     SCPJU                                      Quantity                                                                             Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                             A/B (g/ha)                                                                               (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                               __________________________________________________________________________     A   12.5  60        35        90        20                                         25    80        40        95        30                                         50    95        80        100       65                                     B1  50    0         0         65        0                                          100   0         0         70        0                                          200   0         0         75        0                                      A + B1                                                                             12.5 + 50                                                                            60   60.0 35   35.0 95   96.5 25   20.0                                  25 + 50                                                                              75   80.0 60   40.0 100  98.3 40   30.0                                  50 + 50                                                                              98   95.0 75   80.0 100  100.0                                                                               65   65.0                                  12.5 + 100                                                                           65   60.0 40   35.0 98   97.0 30   20.0                                  25 + 100                                                                             85   80.0 60   40.0 100  98.5 60   30.0                                  50 + 100                                                                             98   95.0 80   80.0 100  100.0                                                                               70   65.0                                  12.5 + 200                                                                           60   60.0 35   35.0 100  97.5 30   20.0                                  25 + 200                                                                             90   80.0 40   40.0 100  98.8 70   30.0                                  50 + 200                                                                             95   95.0 85   80.0 100  100.0                                                                               75   65.0                              __________________________________________________________________________

EXAMPLE 2 Mixtures of (A) with CH-900 (B2)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin2-yl)-5(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B2) at rates of 12.5/25/50 g/ha.

Synergistic effects were observed with ECHCG (E), SAGPY, SCPJU and CYPDI, as can be seen from Table 2 below.

                                      TABLE 2                                      __________________________________________________________________________     Component/                                                                     species   ECHCG (E) SAGPY     SCPJU     CYPDI                                      Quantity                                                                             Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                             A/B (g/ha)                                                                               (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                               __________________________________________________________________________     A   12.5  10        10        20        0                                          25    75        65        40        20                                         50    90        70        60        30                                     B2  12.5  40        10        0         0                                          25    70        20        25        95                                         50    98        25        50        98                                     A + B2                                                                             12.5 + 12.5                                                                          20   46.0 10   19.0 20   20.0 40   0.0                                   25 + 12.5                                                                            40   85.0 60   68.5 65   40.0 60   20.0                                  50 + 12.5                                                                            90   94.0 70   73.0 70   60.00                                                                               100  30.0                                  12.5 + 25                                                                            60   73.0 30   28.0 60   40.0 40   95.0                                  25 + 25                                                                              65   92.5 40   72.0 70   55.0 80   96.0                                  50 + 25                                                                              98   97.0 100  76.0 75   70.00                                                                               95   96.5                                  12.5 + 50                                                                            100  98.2 40   32.5 60   60.0 90   98.0                                  25 + 50                                                                              100  99.5 50   73.8 65   70.0 100  98.4                                  50 + 50                                                                              100  99.8 90   77.5 75   80.00                                                                               100  98.6                              __________________________________________________________________________

EXAMPLE 3 Mixtures of (A) with MCPA (B3)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B3) at rates of 50/100/200 g/ha.

Synergistic effects were observed with the two ECHCG species, CYPSE, SCPJU and CYPDI, as can be seen from Table 3 below.

                                      TABLE 3                                      __________________________________________________________________________     Component/                                                                     species     ECHCG (E) ECHCG (US)                                                                               CYPSE     SCPJU     CYPDI                           Quantity                                                                              Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                 A/B  (g/ha) (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                   __________________________________________________________________________     A    12.5   75        50        30        10        5                               25     95        90        35        40        20                              50     100       100       85        75        25                         B3   50     0         0         30        0         0                               100    20        20        40        10        10                              200    30        60        60        40        100                        A + B3                                                                              12.5 + 50                                                                             80   75.0 75   50.0 45   51.0 20   10.0 10   5.0                        25 + 50                                                                               98   95.0 95   90.0 75   54.5 45   40.0 20   20.0                       50 + 50                                                                               100  100.0                                                                               100  100.0                                                                               90   89.5 80   75.0 30   25.0                       12.5 + 100                                                                            85   80.0 75   60.0 60   58.0 25   19.0 70   14.5                       25 + 100                                                                              95   96.0 95   92.0 65   61.0 60   46.0 80   28.0                       50 + 100                                                                              100  100.0                                                                               100  100.0                                                                               90   91.0 90   77.5 95   32.5                       12.5 + 200                                                                            85   82.5 75   80.0 75   72.0 75   46.0 90   100.0                      25 + 200                                                                              98   96.5 95   96.0 80   74.0 84   64.0 95   100.0                      50 + 200                                                                              100  100.0                                                                               100  100.0                                                                               95   94.0 95   85.0 100  100.0                 __________________________________________________________________________

EXAMPLE 4 Mixtures of (A) with Nitrofen (B4)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B4) at rates of 25/50/200 g/ha.

Synergistic effects were observed with ECHCG, SAGPY, SCPJU and CYPDI, as can be seen from Table 4 below.

                                      TABLE 4                                      __________________________________________________________________________     Component/                                                                     species   ECHCG     SAGPY     SCPJU     CYPDI                                      Quantity                                                                             Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                             A/B (g/ha)                                                                               (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                               __________________________________________________________________________     A   12.5  10        10        15        0                                          25    20        20        30        10                                         50    90        60        60        30                                     B4  25    0         5         0         0                                          50    25        10        20        20                                         100   80        20        30        25                                     A + B4                                                                             12.5 + 25                                                                            40   10.0 10   14.5 20   15.0 20   0.0                                   25 + 25                                                                              80   20.0 25   24.0 25   30.0 30   10.0                                  50 + 25                                                                              85   90.0 65   62.0 60   60.0 60   30.0                                  12.5 + 50                                                                            70   32.5 20   19.0 30   32.0 20   20.0                                  25 + 50                                                                              65   40.0 25   28.0 40   44.0 75   28.0                                  50 + 50                                                                              98   92.5 70   64.0 70   68.0 80   44.0                                  12.5 + 200                                                                           75   82.0 30   28.0 40   40.5 20   25.0                                  25 + 200                                                                             80   84.0 50   36.0 65   51.0 80   32.5                                  50 + 200                                                                             90   98.0 70   68.0 75   72.0 90   47.5                              __________________________________________________________________________

EXAMPLE 5 Mixtures of (A) with Oxadiazon (B5)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B5) at rates of 125/250/500 g/ha.

Synergistic effects were observed with ECHCG (E), CYPSE, SAGPY and SCPJU, as can be seen from Table 5 below.

                                      TABLE 5                                      __________________________________________________________________________     Component/                                                                     species   ECHCG (E) CYPSE     SAGPY     SCPJU                                      Quantity                                                                             Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                             A/B (g/ha)                                                                               (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                               __________________________________________________________________________     A   12.5  60        30        10        10                                         25    90        45        20        40                                         50    100       80        85        60                                     B5  125   90        5         0         20                                         250   100       10        10        30                                         500   100       20        20        70                                     A + B5                                                                             12.5 + 125                                                                           98   96.0 35   33.5 10   10.0 30   28.0                                  25 + 125                                                                             100  99.0 40   47.8 20   20.0 50   52.0                                  50 + 125                                                                             100  100.0                                                                               90   81.0 85   85.0 80   68.0                                  12.5 + 250                                                                           100  100.0                                                                               75   37.0 30   19.0 35   37.0                                  25 + 250                                                                             100  100.0                                                                               85   50.5 35   28.0 50   58.0                                  50 + 250                                                                             100  100.0                                                                               95   82.0 85   86.5 80   72.0                                  12.5 + 500                                                                           100  100.0                                                                               75   44.0 70   28.0 70   73.0                                  25 + 500                                                                             100  100.0                                                                               90   56.0 80   36.0 80   82.0                                  50 + 500                                                                             100  100.0                                                                               95   84.0 90   88.0 90   88.0                              __________________________________________________________________________

EXAMPLE 6 Mixtures of (A) with Pendimethalin (B6)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B6) at rates of 50/100/200 g/ha.

Synergistic effects were observed with ECHCG (US), CYPSE, SAGPY and CYPDI, as can be seen from Table 6 below.

                                      TABLE 6                                      __________________________________________________________________________     Component/                                                                     species   ECHCG (US)                                                                               CYPSE     SAGPY     CYPDI                                      Quantity                                                                             Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                             A/B (g/ha)                                                                               (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                               __________________________________________________________________________     A   12.5  35        30        50        0                                          25    80        35        55        0                                          50    97        80        70        90                                     B6  50    98        0         60        30                                         100   99        0         25        35                                         200   99        0         30        70                                     A + B6                                                                             12.5 + 50                                                                            97   98.7 30   30.0 25   80.0 30   30.0                                  25 + 50                                                                              98   99.6 50   35.0 50   82.0 45   30.0                                  50 + 50                                                                              100  99.9 60   80.0 98   88.0 70   93.0                                  12.5 + 100                                                                           100  99.4 45   30.0 25   62.5 50   35.0                                  25 + 100                                                                             100  99.8 55   35.0 55   66.3 60   35.0                                  50 + 100                                                                             100  100.0                                                                               75   80.0 90   77.5 75   93.5                                  12.5 + 200                                                                           100  99.4 45   30.0 30   65.0 55   70.0                                  25 + 200                                                                             100  99.8 70   35.0 55   68.5 65   70.0                                  50 + 200                                                                             100  100.0                                                                               75   80.0 95   79.0 80   97.0                              __________________________________________________________________________

EXAMPLE 7 Mixtures of (A) with Simetryn (B7)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargytamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B7) at rates of 50/100/200 g/ha.

Synergistic effects were observed with CYPSE, SAGPY, SCPJU and CYPDI, as can be seen from Table 7 below.

                                      TABLE 7                                      __________________________________________________________________________     Component/                                                                     species   CYPSE     SAGPY     SCPJU     CYPDI                                      Quantity                                                                             Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                             A/B (g/ha)                                                                               (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                               __________________________________________________________________________     A   12.5  20        30        20        0                                          25    30        40        40        10                                         50    70        70        60        75                                     B7  50    0         0         0         20                                         100   10        0         0         95                                         200   20        20        10        100                                    A + B7                                                                             12.5 + 50                                                                            30   20.0 65   30.0 20   20.0 90   20.0                                  25 + 50                                                                              40   30.0 70   40.0 40   40.0 95   28.0                                  50 + 50                                                                              75   70.0 75   70.0 65   60.0 100  80.0                                  12.5 + 100                                                                           30   28.0 60   30.0 20   20.0 100  95.0                                  25 + 100                                                                             85   37.0 75   40.0 45   40.0 100  95.5                                  50 + 100                                                                             90   73.0 80   70.0 65   60.0 100  98.9                                  12.5 + 200                                                                           65   36.0 75   44.0 30   28.0 100  100.0                                 25 + 200                                                                             70   44.0 80   52.0 50   46.0 100  100.0                                 50 + 200                                                                             75   76.0 100  76.0 70   64.00                                                                               100  100.0                             __________________________________________________________________________

EXAMPLE 8 Mixtures of (A) with Sulcotrione (B8)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B8) at rates of 25/50/100 g/ha.

Synergistic effects were observed with the two ECHCG species, SAGPY, SCPJU and CYPDI, as can be seen from Table 8 below.

                                      TABLE 8                                      __________________________________________________________________________     Component/                                                                     species     ECHCG (E) ECHCG (US)                                                                               SAGPY     SCPJU     CYPDI                           Quantity                                                                              Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                 A/B  (g/ha) (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                   __________________________________________________________________________     A    12.5   95        45        10        10        0                               25     98        85        25        35        10                              50     99        100       98        60        20                         B8   25     90        25        55        30        20                              50     100       70        85        40        75                              10     100       96        98        60        80                         A + B8                                                                              12.5 + 25                                                                             100  99.5 75   58.8 85   59.5 70   37.0 80   20.0                       25 + 25                                                                               100  99.8 98   88.8 90   66.3 80   54.5 85   28.0                       50 + 25                                                                               100  99.9 100  100  95   99.1 85   72.0 75   36.0                       12.5 + 50                                                                             100  100  90   83.5 90   86.5 80   46.0 75   75.0                       25 + 50                                                                               100  100  100  95.5 95   88.8 85   61.0 100  77.5                       50 + 50                                                                               100  100  100  100  97   99.7 90   76.0 80   80.0                       12.5 + 100                                                                            100  100  100  97.8 98   98.2 80   64.0 85   80.0                       25 + 100                                                                              100  100  100  99.4 99   98.5 85   74.0 90   82.0                       50 + 100                                                                              100  100  100  100  100  100  90   84.0 95   84.0                  __________________________________________________________________________

EXAMPLE 9 Mixtures of (A) with Trifluralin (B9)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5/25/50 g/ha and (B9) at rates of 250/500/1000 g/ha.

Synergistic effects were observed with ECHCG (E), CYPSE, SAGPY and CYPDI, as can be seen from Table 9 below.

                                      TABLE 9                                      __________________________________________________________________________     Component/                                                                     species   ECHCG (E) CYPSE     SAGPY     CYPDI                                      Quantity                                                                             Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                                                                               Activ.                                                                              Colby                             A/B (g/ha)                                                                               (%)  (%)  (%)  (%)  (%)  (%)  (%)  (%)                               __________________________________________________________________________     A   12.5  75        30        30        0                                          25    90        45        35        20                                         50    100       80        60        30                                     B9  250   95        0         10        60                                         500   95        0         10        75                                         1000  100       10        20        80                                     A + B9                                                                             12.5 + 250                                                                           95   98.8 30  30.0  30   37.0 75   60.0                                  25 + 250                                                                             100  95.5 40  45.0  35   41.5 85   68.0                                  50 + 250                                                                             100  100.0                                                                               80  80.0  70   64.0 90   72.0                                  12.5 + 500                                                                           100  98.8 30  30.0  30   37.0 80   75.0                                  25 + 500                                                                             100  99.5 60  45.0  40   41.5 85   80.0                                  50 + 500                                                                             100  100.0                                                                               80  80.0  75   64.0 90   82.5                                  12.5 + 1000                                                                          100  100.0                                                                               30  37.0  30   44.0 70   80.0                                  25 + 1000                                                                            100  100.0                                                                               70  50.5  50   48.0 85   84.0                                  50 + 1000                                                                            100  100.0                                                                               85  82.0  75   68.0 95   86.0                              __________________________________________________________________________

EXAMPLE 10 Mixtures of (A) with Bentazone (B10)

For the experiment, bentazone was applied at rates of 250/500/1000 g/ha and (A) at rates of 25/50/100 g/ha.

A synergistic effect was found in the mixing ratios 25 g/ha of (A)+250/500/1000 g/ha of bentazone, as can be seen from Table 10 below.

                  TABLE 10                                                         ______________________________________                                                    CYPDI                                                                       Dosage 2           Calculated                                          Dosage 1                                                                               Bentazone                                                                               activity  using Colby's                                       (A) [g/ha]                                                                             g/ha     %         formula %                                                                               Synergism                                  ______________________________________                                         25.0             10.0                                                          50.0             100.0                                                         100.0            100.0                                                                 250.0    0.0                                                                   500.0    10.0                                                                  1000.0   20.0                                                          25.0    250.0    100.0     10.0     +                                          50.0    250.0    100.0     100.0                                               100.0   250.0    100.0     100.0                                               25.0    500.0    100.0     19.0     +                                          50.0    500.0    100.0     100.0                                               100.0   500.0    100.0     100.0                                               25.0    1000.0   100.0     28.0     +                                          50.0    1000.0   100.0     100.0                                               100.0   1000.0   100.0     100.0                                               ______________________________________                                    

EXAMPLE 11 Mixtures of (A) with Molinate (B11)

For the experiment, molinate was applied at rates of 250/500/1000 g/ha and (A) at rates of 25/50/100 g/ha.

With the mixing ratios used, a synergistic effect was found for European and American Echinochloa crus-galli and for the Cyperus species CYPSE and CYPDI, where the proportion of (A) was lower than the proportion of component (B11), as can be seen from Tables 11A and 11B below.

                                      TABLE 11A                                    __________________________________________________________________________               ECHCG/European ECHCG/American                                                      Calculated     Calculated                                             Dosage 2 using          using                                             Dosage 1                                                                            g/ha Activity                                                                           Colby's    Activity                                                                           Colby's                                           (A) g/ha                                                                            Molinate                                                                            %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0      80.0           60.0                                                  50.0      99.0           100.0                                                 100.0     100.0          100.0                                                      250.0                                                                               10.0           20.0                                                       500.0                                                                               65.0           65.0                                                       1000.0                                                                              80.0           80.0                                                  25.0 250.0                                                                               100.0                                                                              82.0 +     100.0                                                                              68.0 +                                            50.0 250.0                                                                               100.0                                                                              99.1 +     100.0                                                                              100.0                                             100.0                                                                               250.0                                                                               100.0                                                                              100.0      100.0                                                                              100.0                                             25.0 500.0                                                                               100.0                                                                              93.0 +     100.0                                                                              86.0 +                                            50.0 500.0                                                                               100.0                                                                              99.7 +     100.0                                                                              100.0                                             100.0                                                                               500.0                                                                               100.0                                                                              100.0      100.0                                                                              100.0                                             25.0 1000.0                                                                              100.0                                                                              96.0 +     100.0                                                                              92.0 +                                            50.0 1000.0                                                                              100.0                                                                              99.8 +     100.0                                                                              100.0                                             100.0                                                                               1000.0                                                                              100.0                                                                              100.0      100.0                                                                              100.0                                             __________________________________________________________________________

                                      TABLE 11B                                    __________________________________________________________________________               CYPSE          CYPDI                                                               Calculated     Calculated                                             Dosage 2 using          using                                             Dosage 1                                                                            g/ha Activity                                                                           Colby's    Activity                                                                           Colby's                                           (A) g/ha                                                                            Molinate                                                                            %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0                     50.0                                                  50.0      20.0           98.0                                                  100.0     100.0          100.0                                                      250.0                                                                               50.0           85.0                                                       500.0                                                                               60.0           90.0                                                       1000.0                                                                              70.0           92.0                                                  25.0 250.0                                                                               95.0                                                                               50.0 +     85.0                                                                               92.5                                              50.0 250.0                                                                               97.0                                                                               60.0 +     92.0                                                                               99.7                                              100.0                                                                               250.0                                                                               98.0                                                                               100.0      100.0                                                                              100.0                                             25.0 500.0                                                                               30.0                                                                               60.0       100.0                                                                              95.0 +                                            50.0 500.0                                                                               50.0                                                                               68.0       100.0                                                                              99.8 +                                            100.0                                                                               500.0                                                                               100.0                                                                              100.0      100.0                                                                              100.0                                             25.0 1000.0                                                                              98.0                                                                               70.0 +     100.0                                                                              96.0 +                                            50.0 1000.0                                                                              100.0                                                                              76.0 +     100.0                                                                              99.8 +                                            100.0                                                                               1000.0                                                                              100.0                                                                              100.0      100.0                                                                              100.0                                             __________________________________________________________________________

EXAMPLE 12 Mixtures of (A) with Daimuron (B12)

For the experiment, daimuron was applied at rates of 200/400/800 g/ha and (A) at rates of 25/50/100 g/ha.

For a variety of mixing ratios, a synergistic effect was observed with ECHCG (E), for the Cyperus species CYPSE and CYPDI and for SAGPY, as can be seen from Tables 12A, 12B and 12C below.

                  TABLE 12A                                                        ______________________________________                                                      ECHCH (European)                                                                               Calculated                                                  Dosage 2           using                                             Dosage 1  g/ha     Activity  Colby's                                           g/ha (A)  Daimuron %         formula %                                                                             Synergism                                  ______________________________________                                         25.0               75.0                                                        50.0               98.0                                                        100.0              100.0                                                                 200.0    25.0                                                                  400.0    25.0                                                                  800.0    65.0                                                        25.0      200.0    70.0      81.3                                              50.0      200.0    99.0      98.5   +                                          100.0     200.0    100.0     100.0                                             25.0      400.0    90.0      81.3   +                                          50.0      400.0    100.0     98.5   +                                          100.0     400.0    100.0     100.0                                             25.0      800.0    80.0      91.3                                              50.0      800.0    100.0     99.3   +                                          100.0     800.0    100.0     100.0                                             ______________________________________                                    

                                      TABLE 12B                                    __________________________________________________________________________               CVPSE          CYPDI                                                               Calculated     Calculated                                             Dosage 2 using          using                                             Dosage 1                                                                            g/ha Activity                                                                           Colby's    Activity                                                                           Colby's                                           g/ha (A)                                                                            Daimuron                                                                            %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0                     60.0                                                  50.0      70.0           80.0                                                  100.0     100.0          100.0                                                      200.0                                                                               10.0           0.0                                                        400.0                                                                               30.0           20.0                                                       800.0                                                                               65.0           90.0                                                  25.0 200.0                                                                               70.0                                                                               10.0 +     60.0                                                                               60.0                                              50.0 200.0                                                                               80.0                                                                               73.0 +     70.0                                                                               80.0                                              100.0                                                                               200.0                                                                               90.0                                                                               100.0      80.0                                                                               100.0                                             25.0 400.0                                                                               60.0                                                                               30.0 +     98.0                                                                               68.0 +                                            50.0 400.0                                                                               75.0                                                                               79.0       99.0                                                                               84.0 +                                            100.0                                                                               400.0                                                                               80.0                                                                               100.0      100.0                                                                              100.0                                             25.0 800.0                                                                               85.0                                                                               65.0 +     99.0                                                                               96.0 +                                            50.0 800.0                                                                               100.0                                                                              89.5 +     100.0                                                                              98.0 +                                            100.0                                                                               800.0                                                                               100.0                                                                              100.0      100.0                                                                              100.0                                             __________________________________________________________________________

                  TABLE 12C                                                        ______________________________________                                                      SAGPY                                                                                          Calculated                                                  Dosage 2           using                                             Dosage 1  g/ha     Activity  Colby's                                           g/ha (A)  Daimuron %         formula %                                                                             Synergism                                  ______________________________________                                         25.0               40.0                                                        50.0               80.0                                                        100.0              90.0                                                                  200.0                                                                          400.0                                                                          800.0                                                                25.0      200.0    50.0      40.0   +                                          50.0      200.0    80.0      80.0                                              100.0     200.0    95.0      90.0   +                                          25.0      400.0    55.0      40.0   +                                          50.0      400.0    85.0      80.0   +                                          100.0     400.0    95.0      90.0   +                                          25.0      800.0    60.0      40.0   +                                          50.0      800.0    70.0      80.0                                              100.0     800.0    95.0      90.0   +                                          ______________________________________                                    

EXAMPLE 13 Mixtures of (A) with Thiobencarb (B13)

For the experiment, thiobencarb was applied at rates of 250/500/1000 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with European Echinochloa crus-galli and for SAGPY, as shown in Table 13 below.

                                      TABLE 13                                     __________________________________________________________________________               ECHCG (European)                                                                              SAGPY                                                               Calculated     Calculated                                             Dosage 2 using          using                                             Dosage 1                                                                            g/ha Thio-                                                                          Activity                                                                           Colby's    Activity                                                                           Colby's                                           g/ha (A)                                                                            bencarb                                                                             %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0      85.0           10.0                                                  50.0      98.0           85.0                                                  100.0     100.0          95.0                                                       250.0                                                                               65.0                                                                      500.0                                                                               90.0                                                                      1000.0                                                                              100.0                                                                25.0 250.0                                                                               98.0                                                                               94.8 +     50.0                                                                               10.0 +                                            50.0 250.0                                                                               99.0                                                                               99.3       60.0                                                                               85.0                                              100.0                                                                               250.0                                                                               100.0                                                                              100.0      70.0                                                                               95.0                                              25.0 500.0                                                                               98.0                                                                               98.5       50.0                                                                               10.0 +                                            50.0 500.0                                                                               100.0                                                                              99.8 +     70.0                                                                               85.0                                              100.0                                                                               500.0                                                                               100.0                                                                              100.0      82.0                                                                               95.0                                              25.0 1000.0                                                                              100.0                                                                              100.0      55.0                                                                               10.0 +                                            50.0 1000.0                                                                              100.0                                                                              100.0      75.0                                                                               85.0                                              100.0                                                                               1000.0                                                                              100.0                                                                              100.0      85.0                                                                               95.0                                              __________________________________________________________________________

EXAMPLE 14 Mixtures of (A) with Butachlor (B14)

For the experiment, butachlor was applied at rates of 250/500/1000 g/ha and (A) at rates of 25/50/100 g/ha.

For most mixing ratios, a synergistic effect was observed with SAGPY, as shown in Table 14 below.

                  TABLE 14                                                         ______________________________________                                                      SAGPY                                                                                          Calculated                                               Dosage 2              using                                             Dosage 1                                                                              Butachlor   Activity  Colby's                                           (A) g/ha                                                                              g/ha        %         formula %                                                                             Synergism                                  ______________________________________                                         25.0               50.0                                                        50.0               70.0                                                        100.0              90.0                                                               250.0       20.0                                                               500.0       30.0                                                               1000.0      35.0                                                        25.0   250.0       80.0      60.0   +                                          50.0   250.0       90.0      76.0   +                                          100.0  250.0       100.0     92.0   +                                          25.0   500.0       40.0      65.0                                              50.0   500.0       90.0      79.0   +                                          100.0  500.0       94.0      93.0   +                                          25.0   1000.0      60.0      67.5                                              50.0   1000.0      90.0      80.5   +                                          100.0  1000.0      95.0      93.5   +                                          ______________________________________                                    

EXAMPLE 15 Mixtures of (A) with Pretilachlor (B15)

For the experiment, pretilachlor was employed at rates of 200/400/600 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with SCPJU and CYPDI, as shown in Table 15 below.

                                      TABLE 15                                     __________________________________________________________________________               SCPJU          CYPDI                                                               Calculated     Calculated                                             Dosage 2 using          using                                             Dosage 1                                                                            Pretila-                                                                            Activity                                                                           Colby's    Activity                                                                           Colby's                                           (A) g/ha                                                                            chlor g/ha                                                                          %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0      85.0           60.0                                                  50.0      90.0           80.0                                                  100.0     95.0           95.0                                                       200.0                                                                               80.0           90.0                                                       400.0                                                                               80.0           90.0                                                       600.0                                                                               80.0           95.0                                                  25.0 200.0                                                                               98.0                                                                               97.0 +     95.0                                                                               96.0                                              50.0 200.0                                                                               98.0                                                                               98.0       100.0                                                                              98.0 +                                            100.0                                                                               200.0                                                                               99.0                                                                               99.0       100.0                                                                              99.5 +                                            25.0 400.0                                                                               100.0                                                                              97.0 +     100.0                                                                              96.0 +                                            50.0 400.0                                                                               100.0                                                                              98.0 +     100.0                                                                              98.0 +                                            100.0                                                                               400.0                                                                               98.0                                                                               99.0       98.0                                                                               99.5                                              25.0 600.0                                                                               98.0                                                                               97.0 +     95.0                                                                               98.0                                              50.0 600.0                                                                               99.0                                                                               98.0 +     98.0                                                                               99.0                                              100.0                                                                               600.0                                                                               98.0                                                                               99.0       99.0                                                                               99.8                                              __________________________________________________________________________

EXAMPLE 16 Mixtures of (A) with Dimepiperate

For the experiment, dimepiperate was applied at rates of 250/500/1000 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with SAGPY and CYPDI, as shown in Table 16 below.

                                      TABLE 16                                     __________________________________________________________________________     Dosage 2  CYPDI          SAGPY                                                      Dime-    Calculated     Calculated                                             piper-   using          using                                             Dosage 1                                                                            ate  Activity                                                                           Colby's    Activity                                                                           Colby's                                           (A) g/ha                                                                            g/ha %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0      70.0           0.0                                                   50.0      80.0           50.0                                                  100.0     90.0           80.0                                                       250.0                                                                               0.0                                                                       500.0                                                                               30.0                                                                      1000.0                                                                              60.0                                                                 25.0 250.0                                                                               100.0                                                                              70.0 +     20.0                                                                               0.0  +                                            50.0 250.0                                                                               100.0                                                                              80.0 +     50.0                                                                               50.0                                              100.0                                                                               250.0                                                                               100.0                                                                              90.0 +     75.0                                                                               80.0                                              25.0 500.0                                                                               100.0                                                                              79.0 +     20.0                                                                               0.0  +                                            50.0 500.0                                                                               100.0                                                                              86.0 +     50.0                                                                               50.0                                              100.0                                                                               500.0                                                                               100.0                                                                              93.0 +     75.0                                                                               80.0                                              25.0 1000.0                                                                              100.0                                                                              88.0 +     25.0                                                                               0.0  +                                            50.0 1000.0                                                                              100.0                                                                              92.0 +     70.0                                                                               50.0 +                                            100.0                                                                               1000.0                                                                              100.0                                                                              96.0 +     90.0                                                                               80.0 +                                            __________________________________________________________________________

EXAMPLE 17 Mixtures of (A) with Fenoxaprop-ethyl (B17)

For the experiment, fenoxaprop-ethyl was applied at rates of 5/10/20 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG(USA) and CYPDI, as shown in Table 17 below.

                                      TABLE 17                                     __________________________________________________________________________               ECHCG (American)                                                                              CYPDI                                                      Dosage   Calculated     Calculated                                             2 Fenoxa-                                                                               using          using                                             Dosage 1                                                                            propethyl                                                                           Activity                                                                           Colby's    Activity                                                                           Colby's                                           (A) g/ha                                                                            g/ha %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0      98.0           90.0                                                  50.0      99.0           90.0                                                  100.0     100.0          95.0                                                       5.0  10.0           0.0                                                        10.0 20.0           0.0                                                        20.0 0.0            80.0                                                  25.0 5.0  25.0                                                                               98.2       80.0                                                                               90.0                                              50.0 5.0  100.0                                                                              99.1 +     90.0                                                                               92.0                                              100.0                                                                               5.0  100.0                                                                              100.0      100.0                                                                              95.0 +                                            25.0 10.0 25.0                                                                               98.4       95.0                                                                               90.0 +                                            50.0 10.0 98.0                                                                               99.2       100.0                                                                              92.0 +                                            100.0                                                                               10.0 100.0                                                                              100.0      100.0                                                                              95.0 +                                            25.0 20.0 10.0                                                                               98.0       40.0                                                                               98.0                                              50.0 20.0 100.0                                                                              99.0 +     100.0                                                                              98.4 +                                            100.0                                                                               20.0 100.0                                                                              100.0      100.0                                                                              99.0 +                                            __________________________________________________________________________

EXAMPLE 18 Mixtures of (A) with Clomeprop (B18)

For the experiment, clomeprop was applied at rates of 200/400/800 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with CYPDI, as shown in Table 18 below.

                  TABLE 18                                                         ______________________________________                                                      CYPDI                                                                    Dosage                Calculated                                               2 Clome-              using                                             Dosage 1                                                                              prop        Activity  Colby's                                           (A) g/ha                                                                              g/ha        %         formula %                                                                             Synergism                                  ______________________________________                                         25.0               70.0                                                        50.0               75.0                                                        100.0              90.0                                                        25.0   200.0       95.0                                                        50.0   400.0       100.0                                                       100.0  800.0       100.0                                                       25.0   200.0       100.0     98.5   +                                          50.0   200.0       100.0     98.8   +                                          100.0  200.0       100.0     99.5   +                                          25.0   400.0       100.0     100.0                                             50.0   400.0       100.0     100.0                                             100.0  400.0       100.0     100.0                                             25.0   800.0       100.0     100.0                                             50.0   800.0       100.0     100.0                                             100.0  800.0       100.0     100.0                                             ______________________________________                                    

EXAMPLE 19 Mixtures of (A) with Cinmethylin (B19)

For the experiment, cinmethylin was applied at rates of 10/20/40 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG(European) and CYPDI, as shown in Table 19 below.

                                      TABLE 19                                     __________________________________________________________________________               ECHCG (European)                                                                              CYPDI                                                               Calculated     Calculated                                             Dosage 2 using          using                                             Dosage 1                                                                            methylin                                                                            Activity                                                                           Colby's    Activity                                                                           Colby's                                           (A) g/ha                                                                            g/ha %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0      95.0           30.0                                                  50.0      99.0           80.0                                                  100.0     100.0          90.0                                                       10.0 60.0           60.0                                                       20.0 100.0          60.0                                                       40.0 100.0          60.0                                                  25.0 10.0 99.0                                                                               98.0 +     30.0                                                                               72.0                                              50.0 10.0 100.0                                                                              99.6 +     98.0                                                                               92.0 +                                            100.0                                                                               10.0 100.0                                                                              100.0      98.0                                                                               96.0 +                                            25.0 20.0 100.0                                                                              100.0      90.0                                                                               72.0 +                                            50.0 20.0 100.0                                                                              100.0      100.0                                                                              92.0 +                                            100.0                                                                               20.0 100.0                                                                              100.0      100.0                                                                              96.0 +                                            25.0 40.0 100.0                                                                              100.0      100.0                                                                              72.0 +                                            50.0 40.0 100.0                                                                              100.0      100.0                                                                              92.4 +                                            100.0                                                                               40.0 100.0                                                                              100.0      100.0                                                                              96.0 +                                            __________________________________________________________________________

EXAMPLE 20 Mixtures of (A) with Bromobutide (B20)

For the experiment, bromobutide was applied at rates of 100/200/400 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG(European) and ECHCG (American), as shown in Table 20 below.

                                      TABLE 20                                     __________________________________________________________________________               ECHCG (European)                                                                              ECHCG (American)                                           Dosage 2 Calculated     Calculated                                             Bromo-   using          using                                             Dosage 1                                                                            butide                                                                              Activity                                                                           Colby's    Activity                                                                           Colby's                                           (A) g/ha                                                                            g/ha %   formula %                                                                           Synergism                                                                            %   formula %                                                                           Synergism                                    __________________________________________________________________________     25.0      50.0           65.0                                                  50.0      98.0           99.0                                                  100.0     100.0          100.0                                                      200.0                                                                               10.0           5.0                                                        400.0                                                                               25.0           10.0                                                       800.0                                                                               30.0           40.0                                                  25.0 200.0                                                                               90.0                                                                               55.0 +     80.0                                                                               66.8 +                                            50.0 200.0                                                                               100.0                                                                              98.2 +     100.0                                                                              99.1 +                                            100.0                                                                               200.0                                                                               100.0                                                                              100.0      100.0                                                                              100.0                                             25.0 400.0                                                                               95.0                                                                               62.5 +     98.0                                                                               68.5 +                                            50.0 400.0                                                                               100.0                                                                              98.5 +     100.0                                                                              99.1 +                                            100.0                                                                               400.0                                                                               100.0                                                                              100.0      100.0                                                                              100.0                                             25.0 800.0                                                                               100.0                                                                              65.0 +     100.0                                                                              79.0 +                                            50.0 800.0                                                                               100.0                                                                              98.6 +     100.0                                                                              99.4 +                                            100.0                                                                               800.0                                                                               100.0                                                                              100.0      100.0                                                                              100.0                                             __________________________________________________________________________

EXAMPLE 21 Mixtures of (A) with Quinclorac (B21)

For the experiment, Quinclorac was applied at rates of 250/500/1000 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with CYPSE and SCPJU, as shown in Table 21 below.

                                      TABLE 21                                     __________________________________________________________________________                    Calculated   Calculated                                         Dosage 1                                                                            Dosage 2  using        using                                              A0   Quinclorac                                                                           CYPSE                                                                              Colby's                                                                             Syner-                                                                             SCPJU                                                                              Colby's                                                                             Syner-                                        g/ha g/ha  Activity                                                                           formula %                                                                           gism                                                                               Activity                                                                           formula %                                                                           gism                                          __________________________________________________________________________     25.0       0.0          98.0                                                   50.0       10.0         100.0                                                  100.0      95.0         100.0                                                       250.0 0.0          0.0                                                         500.0 0.0          10.0                                                        1000.0                                                                               0.0          50.0                                                   25.0 250.0 0.0          99.0                                                                               98.0 +                                             50.0 250.0 50.0                                                                               10.0 +   100.0                                                                              100.0                                              100.0                                                                               250.0 95.0                                                                               95.0     100.0                                                                              100.0                                              25.0 500.0 0.0 0.0      100.0                                                                              98.2 +                                             50.0 500.0 50.0                                                                               10.0 +   100.0                                                                              100.0                                              100.0                                                                               500.0 100.0                                                                              95.0 +   100.0                                                                              100.0                                              25.0 1000.0                                                                               10.0                                                                               0.0  +   100.0                                                                              99.0 +                                             50.0 1000.0                                                                               50.0                                                                               10.0 +   100.0                                                                              100.0                                              100.0                                                                               1000.0                                                                               100.0                                                                              95.0 +   100.0                                                                              100.0                                              __________________________________________________________________________

EXAMPLE 22 Mixtures of (A) with Mefenacet (B22)

For the experiment, mefenacet was applied at rates of 250/500/1000 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with SAGPY, as shown in Table 21 below.

                  TABLE 22                                                         ______________________________________                                                                      Calculated                                        Dosage 1  Dosage 2 SAGPY     using                                             (A)       Mefenacet                                                                               Activity  Colby's                                           g/ha      g/ha     %         formula %                                                                             Synergism                                  ______________________________________                                         25.0                                                                           50.0               30.0                                                        100.0              40.0                                                                  250.0    0.0                                                                   500.0    20.0                                                                  1000.0   40.0                                                        25.0      250.0    30.0      0.0    +                                          50.0      250.0    50.0      30.0   +                                          100.0     250.0    80.0      40.0   +                                          25.0      500.0    30.0      20.0   +                                          50.0      500.0    50.0      44.0   +                                          100.0     500.0    80.0      52.0   +                                          25.0      1000.0   30.0      40.0                                              50.0      1000.0   75.0      58.0   +                                          100.0     1000.0   90.0      64.0   +                                          ______________________________________                                    

EXAMPLE 23 Mixtures of (A) with Pyrazosulforon-ethyl (B23)

For the experiment, pyrazosulforon-ethyl was applied at rates of 10/40 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with CYPDI, as shown in Table 23 below.

                  TABLE 23                                                         ______________________________________                                                 Dosage 2                                                               Dosage 1                                                                               g/ha        CYPDI    Calculated                                        g/ha    Pyrazosulfuron-                                                                            Activity using Colby's                                     (A)     ethyl       %        formula %                                                                               Synergism                                ______________________________________                                         25.0                90.0                                                       50.0                90.0                                                       100.0               70.0                                                               10.0        95.0                                                               40.0        70.0                                                       25.0    10.0        95.0     99.5                                              50.0    10.0        90.0     99.5                                              100.0   10.0        100.0    98.5     +                                        25.0    40.0        75.0     97.0                                              50.0    40.0        100.0    97.0     +                                        100.0   40.0        100.0    91.0     +                                        ______________________________________                                    

EXAMPLE 24 Mixtures of (A) with Esprocarb (B24)

For the experiment, esprocarb was applied at rates of 200/400/800 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG (European) and SCPJU, as shown in Table 24 below.

                                      TABLE 24                                     __________________________________________________________________________                     Calculated    Calculated                                       Dosage 1                                                                            Dosage 2                                                                            ECHCH using         using                                            (A)  Esprocarb                                                                           (European)                                                                           Colby's   SCPJU                                                                              Colby's                                          g/ha g/ha Activity                                                                             formula %                                                                           Synergism                                                                           Activity                                                                           formula %                                                                           Synergism                                   __________________________________________________________________________     25.0      95.0            95.0                                                 50.0      99.0            97.0                                                 100.0     100.0           99.0                                                      200.0                                                                               20.0            45.0                                                      400.0                                                                               80.0            80.0                                                      800.0                                                                               80.0            85.0                                                 25.0 200.0                                                                               99.0  96.0 +    100.0                                                                              97.3 +                                           50.0 200.0                                                                               100.0 99.2 +    100.0                                                                              98.4 +                                           100.0                                                                               200.0                                                                               100.0 100.0     100.0                                                                              99.5 +                                           25.0 400.0                                                                               92.0  99.0      99.0                                                                               99.0                                             50.0 400.0                                                                               100.0 99.8 +    99.0                                                                               99.4                                             100.0                                                                               400.0                                                                               100.0 100.0     100.0                                                                              99.8 +                                           25.0 800.0                                                                               99.0  99.0      99.0                                                                               99.3                                             50.0 800.0                                                                               100.0 99.8 +    99.0                                                                               99.6                                             100.0                                                                               800.0                                                                               100.0 100.0     100.0                                                                              99.9 +                                           __________________________________________________________________________

EXAMPLE 25 Mixtures of (A) with Cinosulfuron (B25)

For the experiment, cinosulfuron was applied at rates of 25/75 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with CYPSE, as shown in Table 25 below.

                  TABLE 25                                                         ______________________________________                                                                       Calculated                                       Dosage 1  Dosage 2  CYPSE     using                                            (A)       Cinosulfuron                                                                             Activity  Colby's                                          g/ha      g/ha      %         formula %                                                                             Synergism                                 ______________________________________                                         25.0                0.0                                                        50.0                10.0                                                       100.0               20.0                                                                 25.0      0.0                                                                  75.0      45.0                                                       25.0      25.0      0.0       0.0                                              50.0      25.0      20.0      10.0   +                                         100.0     25.0      20.0      20.0                                             25.0      75.0      60.0      45.0   +                                         50.0      75.0      70.0      50.5   +                                         100.0     75.0      85.0      56.0   +                                         ______________________________________                                    

EXAMPLE 26 Mixtures of (A) with Thenylchlor (B26)

For the experiment, thenylchlor was applied at rates of 25/50/75 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG (European), CYPSE and SAGPY, as shown in Tables 26A and 26B below.

                  TABLE 26A                                                        ______________________________________                                                           ECHCG       Calculated                                       Dosage 1                                                                               Dosage 2  (European)  using                                            (A)     Thenylchlor                                                                              Activity    Colby's                                          g/ha    g/ha      %           formula %                                                                             Synergism                                 ______________________________________                                         25.0              55.0                                                         50.0              97.0                                                         100.0             99.0                                                                 25.0      10.0                                                                 50.0      96.0                                                                 75.0      98.0                                                         25.0    25.0      80.0        59.5   +                                         50.0    25.0      98.0        97.3   +                                         100.0   25.0      99.0        99.1                                             25.0    50.0      100.0       98.2   +                                         50.0    50.0      100.0       99.9   +                                         100.0   50.0      100.0       100.0  +                                         25.0    75.0      100.0       99.1   +                                         50.0    75.0      100.0       99.9   +                                         100.0   75.0      100.0       100.0  +                                         ______________________________________                                    

                                      TABLE 26B                                    __________________________________________________________________________                    Calculated    Calculated                                        Dosage 1                                                                            Dosage 2                                                                             CYPSE                                                                              using         using                                             (A)  Thenylchlor                                                                          Activity                                                                           Colby's   SAGPY                                                                              Colby's                                           g/ha g/ha  %   formula %                                                                           Synergism                                                                           Activity                                                                           formula                                                                             Synergism                                    __________________________________________________________________________     25.0       0.0           55.0                                                  50.0       10.0          70.0                                                  100.0      95.0          85.0                                                       25.0  10.0          0.0                                                        50.0  30.0          0.0                                                        75.0  80.0          10.0                                                  25.0 25.0  0.0 10.0      50.0                                                                               55.0                                              50.0 25.0  90.0                                                                               19.0 +    70.0                                                                               70.0                                              100.0                                                                               25.0  95.0                                                                               95.5      90.0                                                                               85.0 +                                            25.0 50.0  0.0 30.0      70.0                                                                               55.0 +                                            50.0 50.0  0.0 37.0      80.0                                                                               70.0 +                                            100.0                                                                               50.0  0.0 96.5      90.0                                                                               85.0 +                                            25.0 75.0  95.0                                                                               80.0 +    30.0                                                                               59.5                                              50.0 75.0  97.0                                                                               82.0 +    90.0                                                                               73.0 +                                            100.0                                                                               75.0  98.0                                                                               99.0      90.0                                                                               86.5 +                                            __________________________________________________________________________

EXAMPLE 27 Mixtures of (A) with Cumyluron (B27)

For the experiment, cumyluron was applied at rates of 25/50/75 g/ha and (A) at rates of 25/50/100 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG (European) and ECHCG (American), as shown in Table 27 below

                                      TABLE 27                                     __________________________________________________________________________                      Calculated      Calculated                                    Dosage 1                                                                            Dosage 2                                                                             ECHCG using     ECHCG using                                         (A)  Cumyluron                                                                            (Europoean)                                                                          Colby's   (American)                                                                           Colby's                                       g/ha g/ha  Activity                                                                             formula %                                                                           Synergism                                                                           Activity                                                                             formula %                                                                           Synergism                                __________________________________________________________________________     25.0       90.0            93.0                                                50.0       100.0           100.0                                               100.0      100.0           100.0                                                    25.0  0.0             0.0                                                      50.0  20.0            10.0                                                     75.0  30.0            20.0                                                25.0 25.0  95.0  90.0 +    95.0  93.0 +                                        50.0 25.0  100.0 100.0     100.0 100.0                                         100.0                                                                               25.0  100.0 100.0     100.0 100.0                                         25.0 50.0  95.0  92.0 +    95.0  93.7 +                                        50.0 50.0  100.0 100.0     100.0 100.0                                         100.0                                                                               50.0  100.0 100.0     100.0 100.0                                         25.0 75.0  70.0  93.0      95.0  94.4 +                                        50.0 75.0  100.0 100.0     100.0 100.0                                         100.0                                                                               75.0  100.0 100.0     100.0 100.0                                         __________________________________________________________________________

EXAMPLE 28 Mixtures if (A) with MK 243 (B28)

For the experiment, MK 243 was applied at rates of 25/50/75 g/ha and (A) at rates of 25/50/100 g/ha,

MK 243 was present as a WP20 formulation, and (A) as a WP5 formulation.

For some mixing ratios, a synergistic effect was found with CYPSE and CYDPI, as can be seen in Table 28 below.

                                      TABLE 28                                     __________________________________________________________________________                   Calculated    Calculated                                         Dosage 1                                                                            Dosage 2 using         using                                              (A)  MK 243                                                                              CYPSE                                                                              Colby's   CYPDI                                                                              Colby's                                            g/ha g/ha Activity                                                                           formula %                                                                           Synergism                                                                           Activity                                                                           formula %                                                                           Syngergism                                    __________________________________________________________________________     25.0      0.0           98.0                                                   50.0      40.0          99.0                                                   100.0     100.0         100.0                                                       25.0 0.0           0.0                                                         50.0 0.0           0.0                                                         75.0 10.0          30.0                                                   25.0 25.0 0.0 0.0       100.0                                                                              98.0 +                                             50.0 25.0 40.0                                                                               40.0      100.0                                                                              99.0 +                                             100.0                                                                               25.0 90.0                                                                               100.0     100.0                                                                              100.0                                              25.0 50.0 30.0                                                                               0.0  +    95.0                                                                               98.0                                               50.0 50.0 50.0                                                                               40.0 +    98.0                                                                               99.0                                               100.0                                                                               50.0 96.0                                                                               100.0     100.0                                                                              100.0                                              25.0 75.0 100.0                                                                              10.0 +    100.0                                                                              98.6 +                                             50.0 75.0 100.0                                                                              46.0 +    100.0                                                                              99.3 +                                             __________________________________________________________________________

EXAMPLE 29 Mixtures of (A) with Naproanilide (B29)

For the experiment, naproanilide was applied at rates of 500/625/750 g/ha and (A) at rates of 100/125/150 g/ha.

For some mixing ratios, a synergistic effect was observed with CYPSE, as shown in Table 29 below.

                  TABLE 29                                                         ______________________________________                                                                       Calculated                                       Dosage 1  Dosage 2            using                                            (A)       Naproanilide                                                                             CYPSE     Colby's                                          g/ha      g/ha      Activity  formula                                                                               Synergism                                 ______________________________________                                         100.0               95.0                                                       125.0               85.0                                                       150.0               80.0                                                                 500.0     0.0                                                                  625.0     0.0                                                                  750.0     0.0                                                        100.0     500.0     88.0      95.0                                             125.0     500.0     90.0      85.0   +                                         150.0     500.0     85.0      80.0   +                                         100.0     625.0     90.0      95.0                                             125.0     625.0     90.0      85.0   +                                         150.0     625.0     70.0      80.0                                             100.0     750.0     90.0      95.0                                             125.0     750.0     95.0      85.0   +                                         150.0     750.0     70.0      80.0                                             ______________________________________                                    

EXAMPLE 30 Mixtures of (A) with Anilofos (B30)

For the experiment, anilofos was applied at rates of 62.5/93.8/125 g/ha and (A) at rates of 50/75/100 g/ha.

For all mixing ratios tested, a synergistic effect was found with CYPSE, as can be seen in Table 30 below.

                  TABLE 30                                                         ______________________________________                                                                      Calculated                                        Dosage 1  Dosage 2           using                                             (A)       Anilofos CYPSE     Colby's                                           g/ha      g/ha     Activity  formula %                                                                             Synergism                                  ______________________________________                                         50.0               80.0                                                        75.0               80.0                                                        100.0              80.0                                                                  62.5     0.0                                                                   93.8     0.0                                                                   125.0    0.0                                                         50.0      62.5     90.0      80.0   +                                          75.0      62.5     95.0      80.0   +                                          100.0     62.5     95.0      80.0   +                                          50.0      93.8     90.0      80.0   +                                          75.0      93.8     85.0      80.0   +                                          100.0     93.8     95.0      80.0   +                                          50.0      125.0    90.0      80.0   +                                          75.0      125.0    85.0      80.0   +                                          100.0     125.0    90.0      80.0   +                                          ______________________________________                                    

EXAMPLE 31 Mixtures of (A) with Benfuresate (B31)

For the experiment, benfuresate was applied at rates of 150/200/250 g/ha and (A) at rates of 50/75/100 g/ha.

For some mixing ratios, a synergistic effect was observed with CYPDI, as shown in Table 31 below.

                  TABLE 31                                                         ______________________________________                                                                       Calculated                                       Dosage 1  Dosage 2  CYPDI     using                                            (A)       Benfuresate                                                                              Activity  Colby's                                          g/ha      g/ha      %         formula %                                                                             Synergism                                 ______________________________________                                         50.0                90.0                                                       75.0                100.0                                                      100.0               100.0                                                                150.0     0.0                                                                  200.0     0.0                                                                  250.0     60.0                                                       50.0      150.0     100.0     90.0   +                                         75.0      150.0     100.0     100.0                                            100.0     150.0     100.0     100.0                                            50.0      200.0     100.0     90.0   +                                         75.0      200.0     100.0     100.0                                            100.0     200.0     100.0     100.0                                            50.0      250.0     100.0     96.0   +                                         75.0      250.0     100.0     100.0                                            100.0     250.0     100.0     100.0                                            ______________________________________                                    

EXAMPLE 32 Mixtures of (A) with Piperophos (B32)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 25 and 100 g/ha and piperophos at rates of 400 and 800 g/ha.

For some mixing ratios, a synergistic effect was observed with SCPJU, as shown in Table 32 below.

                  TABLE 32                                                         ______________________________________                                         Dosage 1                                                                               Dosage 2  SCPJU     Calculated using                                   (A)     Piperophos                                                                               activity (%)                                                                             Colby's formula                                                                          Synergism                                ______________________________________                                         25                65                                                           100               95                                                                   400       92                                                                   800       94                                                           25      800       99        98        +                                        100     800       100       99.7      +                                        ______________________________________                                    

EXAMPLE 33 Mixtures of (A) with Pyributicarb (B33)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 25 and 50 g/ha and pyributicarb at rates of 200 and 400 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG, as shown in Table 33 below.

                  TABLE 33                                                         ______________________________________                                                                      Calculated                                                  Dosage 2 ECHCG     using                                             Dosage 1  Pyributi-                                                                               activity  Colby's                                           (A)       carb     (%)       formula                                                                               Synergism                                  ______________________________________                                         25                 87                                                          50                 99                                                                    200      80                                                                    400      99                                                          25        200      98        97.4   +                                          25        400      100       99.9   +                                          ______________________________________                                    

EXAMPLE 34 Mixtures of (A) with Ethoxysulfuron (B34)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5 D 25 I 50 g/ha and ethoxysulfuron at rates of 5, 10 and 20 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG (2,5-leaf stage), as shown in Table 34 below.

                  TABLE 34                                                         ______________________________________                                                                       Calculated                                                 Dosage 2  ECHCG     using                                            Dosage 1  Eghoxysul-                                                                               activity  Colby's                                          (A)       foron     (%)       formula                                                                               Synergism                                 ______________________________________                                         12.5                30                                                         25                  50                                                         50                  75                                                                   5         0                                                                    10        10                                                                   20        20                                                         12.5      5         30        30     -                                         25        5         60        50     +                                         50        5         98        75     +                                         12.5      10        45        37     +                                         25        10        65        55     +                                         50        10        98        77.5   +                                         12.5      20        45        44     +                                         25        20        65        60     +                                         50        20        98        80     +                                         ______________________________________                                    

EXAMPLE 35 Mixtures of (A) with Bensulfuron-methyl (B35)

For the experiment, 1-(3-chloro-4,5,6,7,-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 12.5 and 25 g/ha and bensulfuronmethyl at rates of 10 and 20 g/ha.

A synergistic effect was observed with ECHCG (2,5-leaf stage), as shown in Table 35 below.

                  TABLE 35                                                         ______________________________________                                                                      Calculated                                                  Dosage 2 ECHCG     using                                             Dosage 1  Bensulfur-                                                                              activity  Colby's                                           (A)       on-methyl                                                                               (%)       formula                                                                               Synergism                                  ______________________________________                                         12.5               20                                                          25                 40                                                                    10       40                                                                    20       70                                                          25        10       70        64     +                                          ______________________________________                                    

EXAMPLE 36 Mixtures of (A) with Pyrazolate (B36)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 50 and 100 g/ha and pyrazolate at rates of 500 and 1000 g/ha.

For some mixing ratios, a synergistic effect was observed with PASDS, as shown in Table 36 below.

                  TABLE 36                                                         ______________________________________                                                           PASDS    Calculated                                          Dosage 1                                                                               Dosage 2  activity using Colby's                                       (A)     Pyrazolate                                                                               (%)      formula   Synergism                                 ______________________________________                                          50               70                                                           100               80                                                                   500        0                                                                   1000       0                                                            50     500       70       70        -                                         100     500       95       80        +                                         100     1000      100      80        +                                         ______________________________________                                    

EXAMPLE 37 Mixtures of (A) with Pyrazoxyfen (B37)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 50 and 100 g/ha and pyrazoxyfen at rates of 500 and 1000 g/ha.

For some mixing ratios, a synergistic effect was observed with PASDS, as shown in Table 37 below.

                  TABLE 37                                                         ______________________________________                                                            PASDS    Calculated                                         Dosage 1                                                                               Dosage 2   activity using Colby's                                      (A)     Pyrazoxyfen                                                                               (%)      formula   Synergism                                ______________________________________                                         50                 10                                                          100                98                                                                  500         0                                                                  1000        0                                                          50      500        20       10        +                                        100     500        98       98        -                                        50      1000       30       10        +                                        ______________________________________                                    

EXAMPLE 38 Mixtures of (A) with Benzofenap (B38)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at a rate of 50 g/ha and benzofenap at rates of 500 and 1000 g/ha.

A synergistic effect was observed with ECHCG, as shown in Table 38 below.

                  TABLE 38                                                         ______________________________________                                                            ECHCG    Calculated                                         Dosage 1                                                                               Dosage 2   activity using Colby's                                      (A)     Benzofenap (%)      formula   Synergism                                ______________________________________                                         50                 80                                                                  500         0                                                                  1000        0                                                          50      500        98       90        +                                        ______________________________________                                    

EXAMPLE 39 Mixtures of (A) with Cyclosulfamuron (B39)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 6.25 and 12.5 g/ha and cyclosulfamuron at rates of 15 and 30 g/ha.

For some mixing ratios, a synergistic effect was observed with SCPJU, as shown in Table 39 below.

                  TABLE 39                                                         ______________________________________                                                             SCPJU   Calculated                                         Dosage 1                                                                              Dosage 2     activity                                                                               using Colby's                                      (A)    CyClosulfamuron                                                                             (%)     formula   Synergism                                ______________________________________                                          6.25               30                                                         12.5                50                                                                15           60                                                                30           90                                                         12.5   15           80      80        -                                         6.25  30           100     93        +                                        12.5   30           100     95        +                                        ______________________________________                                    

EXAMPLE 40 Mixtures of (A) with Cyhalofop-butyl (B40)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 25 and 50 g/ha and cyhalofop-butyl at rates of 15 and 30 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG, as shown in Table 40 below.

                  TABLE 40                                                         ______________________________________                                                            ECHCG    Calculated                                         Dosage 1                                                                               Dosage 2   activity using Colby's                                      (A)     Pyributicarb                                                                              (%)      formula   Synergism                                ______________________________________                                         25                 30                                                          50                 80                                                                  15         50                                                                  30         80                                                          25      15         80       65        +                                        50      15         95       90        +                                        25      30         90       86        +                                        50      30         98       96        +                                        ______________________________________                                    

EXAMPLE 41 Mixtures of (A) with NBA-061 (B41)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was applied at rates of 25 and 50 g/ha and NBA-061 at rates of 12.5 and 25 g/ha.

For some mixing ratios, a synergistic effect was observed with ECHCG, as shown in Table 41 below.

                  TABLE 41                                                         ______________________________________                                                           ECHCG    Calculated                                          Dosage 1                                                                               Dosage 2  activity using Colby's                                       (A)     NBA-061   (%)      formula   Synergism                                 ______________________________________                                         25                30                                                           50                80                                                                   12.5      50                                                                   25        70                                                           25      12.5      80       65        +                                         25      25        90       79        +                                         50      25        95       94        +                                         ______________________________________                                    

EXAMPLE 42 Mixtures of (A) with Azimsulfuron (B42)

For the experiment, 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methylpropargylamino)-4-pyrazolylcarbonitrile (A) was [lacuna] at rates of 30 and 60 g/ha and azimsulfuron at rates of 5 and 10 g/ha.

For some mixing ratios, a synergistic effect was observed with CYPSE, as shown in Table 42 below.

                  TABLE 42                                                         ______________________________________                                                            CYPSE    Calculated                                         Dosage 1                                                                               Dosage 2   activity using Colby's                                      (A)     Pyributicarb                                                                              (%)      formula   Synergism                                ______________________________________                                         30                 50                                                          60                 70                                                                   5         70                                                                  10         80                                                          30      10         100      90        +                                        60      10         100      94        +                                        ______________________________________                                     

We claim:
 1. A synergistically active herbicidal composition which comprises, as active components, a mixture of 1-(3-chloro-4,5,6,7-tetrahydropyrazolo-[1,5-a]-pyridin-2-yl)-5-(methyipropargylamino)-4-pyrazolylcarbonitrile [Component (A)] and a herbicide selected from the group consisting of bentazone, molinate, daimuron, thiobencarb, butachlor, pretilachlor, dimepiperate, fenoxaprop-ethyl, clomeprop, cinmethylin, bromobutide, quinclorac, mefenacet, pyrazosulfuron-ethyl, esprocarb, cinosulfuron, thenylchlor, cumyluron, MK 243, naproanilide, anilofos, benfuresate, bifenox, CH-900, MCPA, nitrofen, oxadiazon, pendimethalin, simetryn, sulcotrione (ICIA0051), trifluralin, piperophos, pyributicarb, ethoxysulfuron, bensulfuronmethyl, pyrazolate, pyrazoxyfen, benzofenap, cyclosulfamuron, cyhalofop-butyl, NBA-061, azimsulfuron, propanil or imazosulfuron [Component (B)].
 2. A herbicidal composition as claimed in claim 1 wherein the weight ratio of components (A) and (B) in the mixture is between 1:0.1 and 1:100.
 3. A herbicidal composition as claimed in claim 2 wherein the weight ratio is between 1:0.5 and 1:50.
 4. A method for controlling weeds, which comprises applying to the weeds or their locus an effective amount of a composition as claimed in claim
 1. 5. The method as claimed in claim 4 wherein the weeds are controlled in a crop.
 6. The method as claimed in claim 5, wherein the crop is rice. 